<template>
  <div class="dashboard-container">
    <div class="app-container">
      <el-card>
        <el-tabs>
          <!-- 放置页签 -->
          <el-tab-pane label="角色管理">
            <!-- 新增角色按钮 -->
            <el-row style="height: 60px">
              <el-button
                icon="el-icon-plus"
                size="small"
                type="primary"
                @click="hAdd"
              >新增角色</el-button>
            </el-row>
            <!-- 表格 -->
            <el-table :data="list">
              <el-table-column label="序号" width="120" type="index" />
              <el-table-column label="角色名称" width="240" prop="name" />
              <el-table-column label="描述" prop="description" />
              <el-table-column label="操作">
                <template #default="{row}">
                  <el-button size="small" type="success">分配权限</el-button>
                  <el-button size="small" type="primary" @click="hEdit(row)">编辑</el-button>
                  <el-button size="small" type="danger" @click="delRolesList(row.id)">删除</el-button>
                </template>
              </el-table-column>
            </el-table>

            <el-row
              type="flex"
              justify="center"
              align="middle"
              style="height: 60px"
            >
              <!-- 分页组件 -->
              <el-pagination
                :current-page="queryParams.page"
                :page-sizes="[3, 5, 10, 20]"
                :page-size="queryParams.pagesize"
                layout="total,sizes,prev,pager,next,jumper"
                :total="total"
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
              />
            </el-row>
          </el-tab-pane>
        </el-tabs>
      </el-card>
      <!-- 新增弹框 -->
      <el-dialog
        title="编辑弹层"
        :close-on-click-modal="false"
        :close-on-press-escape="false"
        :visible.sync="showDialog"
        @close="resetForm"
      >
        <el-form
          ref="roleForm"
          :model="roleForm"
          :rules="rules"
          label-width="100px"
        >
          <el-form-item label="角色名称" prop="name">
            <el-input v-model="roleForm.name" />
          </el-form-item>
          <el-form-item label="角色描述" prop="description">
            <el-input v-model="roleForm.description" />
          </el-form-item>
        </el-form>
        <!-- 底部 -->
        <el-row slot="footer" type="flex" justify="center">
          <el-col :span="6">
            <el-button size="small">取消</el-button>
            <el-button
              size="small"
              type="primary"
              @click="hSubmit"
            >确定</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>
<script>
import { getRolesList, addRolesList, updateRolesList, delRolesList } from '@/api/settings'

export default {
  data() {
    return {
      queryParams: {
        page: 1, // 第几页
        pagesize: 10 // 每页几条
      },
      list: [], // 储存角色列表
      total: 0, // 保存角色的总数
      showDialog: false,
      isEdit: false,
      roleForm: {
        name: '',
        description: ''
      },
      rules: {
        name: [{ required: true, message: '请输入角色名称', trigger: 'blur' }],
        description: [
          { required: true, message: '请输入角色名称', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.loadRolesList()
  },
  methods: {
    // 加载
    async loadRolesList() {
      try {
        const res = await getRolesList(this.queryParams)
        console.log('getRolesList', res)
        this.list = res.data.rows
        this.total = res.data.total
      } catch (error) {
        console.log('catch error', error)
      }
    },
    // 当每页显示条数进行切换时触发
    handleSizeChange(val) {
      console.log(`每页 ${val} 条`)
      this.queryParams.page = 1
      this.queryParams.pagesize = val
      this.loadRolesList()
    },
    // 当前的页码进行切换时触发
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`)
      this.queryParams.page = val
      this.loadRolesList()
    },
    // 确定提交
    hSubmit() {
      this.$refs.roleForm.validate((valid) => {
        if (!valid) return
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    // 点击新增角色
    hAdd() {
      this.isEdit = false
      this.showDialog = true
    },
    // 提交添加角色
    async doAdd() {
      try {
        const res = await addRolesList(this.roleForm)
        console.log('addRolesList', res)
        this.total++
        const maxPage = Math.ceil(this.total / this.queryParams.pagesize)
        this.queryParams.page = maxPage
        this.loadRolesList()
        this.showDialog = false
      } catch (error) { console.log('catch error', error) }
    },
    // 点击编辑
    hEdit(data) {
      this.isEdit = true
      this.roleForm = { ...data }
      this.showDialog = true
    },
    // 提交编辑角色
    async doEdit() {
      try {
        await updateRolesList(this.roleForm)
        console.log('updateRolesList success')
        this.loadRolesList()
        this.showDialog = false
      } catch (error) { console.log('catch error', error) }
    },
    // 删除
    delRolesList(id) {
      this.$confirm('确认删除?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async() => {
        await delRolesList(id)
        // 判断页码是否只有一条输数据,如果只有一条,需要当前的页码值减1
        if (this.list.lebgth === 1) {
          this.queryParams.page--
          if (this.queryParams.page <= 0) {
            this.queryParams.page = 1
          }
        }
        this.loadRolesList()
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消'
        })
      })
    },
    // 重置表单
    resetForm() {
      this.$refs.roleForm.resetFields()
    }
  }
}
</script>
